%A CHEN Sing-Chi, LUO Yi-Bo %T Critical notes on some species of Epipactis (Orchidaceae) %0 Journal Article %D 2002 %J J Syst Evol %R %P 141-146 %V 40 %N 2 %U {https://www.jse.ac.cn/CN/abstract/article_16585.shtml} %8 2002-03-18 %X The differences between Epipactis gigantea Dougl. ex Hook., E. royleana Lindl. and E. mairei Schltr. are discussed. The Chinese plants formerly considered by many authors as E. gigantea and E. royleana are truly E. mairei, while E. royleana is restricted to south and southeast Xizang in China.